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Asflapristis

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Extinct genus of cartilaginous fishes

Asflapristis
Temporal range: Turonian-Santonian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Rajiformes
Family: †Ptychotrygonidae
Genus: †Asflapristis
Villalobos-Segura, Underwood, Ward, & Claeson, 2019
Type species
†Asflapristis cristadentis
Villalobos-Segura, Underwood, Ward, & Claeson, 2019
Other species
  • †Asflapristis rugosa
    (Case, Schwimmer, Borodin & Leggett, 2001)
Synonyms
Species synonymy
  • A. rugosa
      • Erguitaia rugosa
        Case, Schwimmer, Borodin & Leggett, 2001
      • Ptychotrygon rugosum
        (Case, Schwimmer, Borodin & Leggett, 2001)

Asflapristis is an extinct genus of ptychotrygonid sclerorhynchoid that lived during the Late Cretaceous. It contains two valid species: A. cristadentis from the Akrabou Formation of Morocco and A. rugosa from the Eutaw Formation of Georgia and Mississippi and the Pleasant Creek Formation of North Carolina. Articulated skeletons of A. cristadentis show it had secondarily lost the rostral denticles typical of sclerorhynchoids, a process called "depristification".

References

  1. ^ Villalobos-Segura, E.; Underwood, C.J.; Ward, D.J.; Claeson, K.M. (2019). "The first three-dimensional fossils of Cretaceous sclerorhynchid sawfish: Asflapristis cristadentis gen. et sp. nov., and implications for the phylogenetic relations of the Sclerorhynchoidei (Chondrichthyes)" (PDF). Journal of Systematic Palaeontology. 17 (21): 1847–1870. Bibcode:2019JSPal..17.1847V. doi:10.1080/14772019.2019.1578832. S2CID 145940997.
  2. ^ Case, G.R.; Schwimmer, D.R.; Borodin, P.D.; Leggett, J.J. (2001). "A new selachian fauna from the Eutaw Formation (Upper Cretaceous/early to middle Santonian) of Chattahoochee County, Georgia". Palaeontographica Abteilung A. 261 (4–6): 83–102. doi:10.1127/pala/261/2001/83.
  3. ^ Begat, A.; Kriwet, J.; Gelfo, J.N.; Cavalli, S.G.; Schultz, J.A.; Martin, T. (2023). "The first southern hemisphere occurrence of the extinct Cretaceous sclerorhynchoid sawfish Ptychotrygon (Chondrichthyes, Batoidea), with a review of Ptychotrygon taxonomy". Journal of Vertebrate Paleontology. 42 (2): e2162411. doi:10.1080/02724634.2022.2162411. PMC 7614936. PMID 37564697.
  4. Cicimurri, D.J.; Ciampaglio, C.N.; Runyon, K.E. (2014). "Late Cretaceous elasmobranchs from the Eutaw Formation at Luxapalila Creek, Lowndes County, Mississippi". PalArch's Journal of Vertebrate Palaeontology. 11 (2): 1–36.
  5. Cicimurri, D.J.; Weems, R.E. (2021). "First record of Ptychotrygon rugosum (Case, Schwimmer, Borodin, and Leggett, 2001) (Batomorphii, Sclerorhynchiformes, Ptychotrygonidae) in the United States Atlantic Coastal Plain". Journal of Vertebrate Paleontology. 41 (2): e1933996. doi:10.1080/02724634.2021.1933996.
  6. Greenfield, T. (2024). "Pristification: Defining the convergent evolution of saws in sharks and rays (Chondrichthyes, Neoselachii)". Mesozoic. 1 (2): 121–124. doi:10.11646/MESOZOIC.1.2.3.
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